Laura Muir and Laura Weightman - the long-distance runners - were among the British athletes to impress in the latest round of the Diamond League.
Both Weightman, the British champion, and Muir ran personal bests in the 1500 metres in Paris on Saturday.
Scot Muir, who was pipped on the line in those national championships last month, exacted some revenge on Weightman, finishing sixth in the race in a time of 4:00.07, moving her to fifth on the all-time UK list for the event.
Just two places behind her was 23-year-old Weightman, clocking 4:00.17 to also climb the all-time list and move into sixth.
The race itself was won by Dutch athlete Sifan Hassan with a national record time of 3:57.00, just ahead of American Jenny Simpson in 3:57.22.
The performances of the Brits, though, will give them plenty of encouragement as they head into the Commonwealth Games and, later, the European Championships.
Other British athletes who competed in the French capital included 110m hurdler Tiffany Porter, long jumper Shara Proctor and pole vaulter Steve Lewis.
Porter, the bronze-medalist from last year's World Championships in Moscow, finished fifth in a high-class race won by USA athlete Dawn Harper.
Proctor also performed well - leaping to 6.70m to finish fourth in the sand. There was disappointment for Lewis, however.
The 28-year-old failed to register a clearance at any height as his poor start to the season continued.
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